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Wet scrubbing intensification applied to hydrogen sulphide removal in waste water treatment plant
Author(s) -
Biard PierreFrançois,
Couvert Annabelle,
Renner Christophe,
Levasseur JeanPierre
Publication year - 2010
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.20310
Subject(s) - data scrubbing , scrubber , wet scrubber , pressure drop , chemistry , waste management , hydrogen , contactor , water treatment , hydrogen sulfide , flue gas desulfurization , environmental science , materials science , environmental engineering , metallurgy , mechanics , engineering , sulfur , thermodynamics , organic chemistry , power (physics) , physics
Hydrogen sulphide removal in a waste water treatment plant at semi‐industrial scale in a compact wet scrubber has been investigated. The gas residence time in the scrubber was reduced to 30 ms using a NaOCl caustic scrubbing solution. The contactor is composed of a wire mesh packing structure where liquid and gas flow co‐currently at high velocity (>12 m s −1 ). H 2 S removal percentages higher than 95% could be achieved whereas a moderate pressure drop was measured (<4000 Pa). Both the hydrodynamic and chemical conditions can influence the efficiency of the process. Correlations were developed to predict both the pressure drop and the H 2 S removal efficiency at given operating conditions.
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